OFFSET
1,1
COMMENTS
Table starts
....7......26......130.......617.......2668......11479....47947.201431
...17.....195.....2426.....27414.....286164....2924668.27440631
...54....1968....61256...1845169...50756609.1290246169
..171...18933..1518344.118115088.8260429504
..554..186780.38154616
.1926.2019171
.6976
EXAMPLE
Some solutions for n=3, k=4
..0..2..0..2..0....0..0..0..2..2....0..0..0..2..2....0..0..2..1..1
..0..2..0..1..0....0..0..0..0..1....0..1..0..1..2....0..0..1..1..2
..1..0..1..1..2....2..0..0..1..1....1..1..1..2..2....2..0..2..1..2
..0..1..2..1..1....1..2..2..2..1....0..1..0..2..1....1..2..2..2..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Sep 11 2015
STATUS
approved